What does Overscan mean?
Overscan enlarges an incoming image slightly so its outer edges fall beyond the visible screen. It can hide unwanted borders in some sources but can also crop useful modern interface and programme information.
Why it matters
Televisions use different names for full-frame or one-to-one display options, and settings can differ by input or resolution. If menus, captions and scoreboards are clipped together, inspect the overall picture-size setting before changing the stream. A player’s own zoom can cause similar cropping, so compare another app or the device interface to locate the relevant layer.
A practical example
If the bottom caption line and the edge of the streaming box’s menu are both missing, a television sizing option is a stronger suspect than a damaged subtitle file. Restoring a full-image mode can solve both symptoms without changing the subscription or encoded resolution.
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Related terminology: Original programme title, Packet loss.
For practical setup and troubleshooting, browse the journal or support guides.